2.5.0 compatibility issue with Arduino Wire API

[SergioGarciaCuevasGonzalez]

The Wire library included in version 2.5.0 breaks compatibility with the common Arduino Wire library. On version 2.5.0, TwoWire::onReceive() has the following (incompatible) signature:

void TwoWire::onReceive(void (*)(size_t));

The expected signature is as follows:

void TwoWire::onReceive(void (*)(int));

Portable I2C slave reception code won't compile anymore because of this.

[d-a-v]

Thanks for the report. A fix will be proposed.

[SergioGarciaCuevasGonzalez]

I deleted the template by accident. I see I left out a lot of required information! Please have a code example that compiles for other Arduino ports:

#include <Wire.h>

const uint8_t slaveAddress = 0x10;

void receiveEvent(int howMany) {
  (void) Serial.print("receiveEvent(");
  (void) Serial.print(howMany, DEC);
  (void) Serial.print("): ");
  while (Wire.available() > 1)
  {
    (void) Serial.print(Wire.read(), DEC);
    (void) Serial.print(", ");
  }
  (void) Serial.println(Wire.read(), DEC);
}

void setup() {
  Serial.begin(115200);
  Wire.begin(slaveAddress);
  Wire.onReceive(receiveEvent);
}

void loop() {
}